Ever wonder why you see folks just leave their fresh eggs out on the counter? That’s because there’s a protective layer covering the egg keeping it fresh. Just what is this protective layer on fresh eggs?
This invisible layer is known as the bloom. Also referred to as the cuticle or bloom coating, this protective coat plays a crucial role in preserving the egg’s freshness and safeguarding it from harmful bacteria.
In this article, we’ll discuss all there is to know about the bloom and how you can take advantage of it!
What is the Bloom?
The bloom is a natural coating that envelops the eggshell. It is a thin layer of protein-based material secreted by the hen’s uterus as the egg is laid. The purpose of this protective shield is to shield the porous eggshell from bacteria and moisture loss, ensuring the egg stays fresh for longer.
If you were to grab an egg right as the hen was done laying, you’d notice it was wet and sticky. That’s the protective layer that hasn’t dried yet!
For that protective layer to dry, give the eggs a few minutes after the hen is done laying.
Why is the Bloom Necessary?
Each egg contains thousands of tiny pores that allow air to pass through, facilitating respiration for the developing embryo. However, these pores also create a potential pathway for bacteria to infiltrate the egg. The bloom, acting as a natural shield, seals these pores and significantly reduces the risk of contamination.
In addition to its protective role, the bloom also plays a vital role in regulating moisture levels within the egg. Eggs contain water, and over time, they can lose moisture through evaporation. The bloom helps to minimize moisture loss by acting as a barrier, thereby extending the shelf life of the egg.
The Delicate Nature of the Bloom
While the bloom is a remarkable natural defense mechanism, it is important to note that it is delicate and can be easily removed or damaged. Washing an egg with water or using abrasive materials can strip away the protective coating, leaving the egg vulnerable to bacterial infiltration. For this reason, eggs are often not washed until just before consumption, preserving the integrity of the bloom.
Should You Refrigerate Fresh Eggs?
Generally, you don’t have to refrigerate fresh eggs due to their natural protective layer. However, if you’ve washed the eggs or compromised their protective layer, it’s best to refrigerate the eggs immediately.
Due to the natural bloom, many countries do not refrigerate their eggs. Eggs will remain good for about a month before you must refrigerate them. However, it’s worth noting that practices may vary in different regions, and refrigeration is recommended in some areas to ensure food safety.
The main reason consumers in the USA buy refrigerated eggs is because they are required to be washed before being sold. Since the bloom is gone, the egg must be refrigerated to remain safe to eat.
Cracked Eggs: Is The Bloom Compromised?
In total, yes, if the egg is cracked, the bloom will be compromised.
As powerful as the bloom is at protecting our eggs, it’s no match for a cracked and therefore compromised egg. If your chicken eggs are getting cracked frequently, try giving them some calcium-rich oyster shells. Calcium is needed for your chickens to create healthy, strong eggshells. While the bloom can protect an egg, if the egg is cracked, it doesn’t stand a chance. Most folks will just throw the egg away altogether if it’s cracked. In order to get that extra calcium that your chicken needs I always suggest keeping some oyster shells around for your chickens to snack on. To see a complete guide, check out my article on “Chickens and Oyster Shells”!
Asking the Chicken Enthusiasts
I reached out to a group of chicken enthusiasts to see if they washed their eggs after they gathered them, or before eating. The purpose of this test was to see if anybody mentioned the bloom and if they took advantage of not having to wash their eggs! See the responses below!
The individual who commented went above and beyond. They mentioned the bloom, and how it protects your fresh eggs!
Also worth noting, 90% of these chicken enthusiasts didn’t wash their eggs until right before eating, which shows that most chicken keepers are taking advantage of the bloom!